[c-nsp] slow convergence on edge BGP routers

[Mark Tinka]

On 27/Feb/15 20:59, Pete Templin wrote:
> Shift the traffic before you drop the connection:
>
> Advertise your routes with the right mix of communities to get ISP 1
> to prefer ISP2 instead of your direct link. That'll cause their
> propagation of your announcement to withdraw in a more graceful manner.
> Likewise, depreference the routes learned from ISP 1 so EDGE1 prefers
> the path that EDGE2 has.
>
> Probably takes 8-15 minutes of advance work to save ~15 seconds of
> outage, but therefore probably worthwhile.

Which is fine if you are in control of the outage.

In real life - well, you know... :-).

Mark.